CVE-2021-37391

MEDIUM

Chamilo LMS 1.11.0-1.11.14 - Stored Cross-Site Scripting via Social Network Invitation Feature

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-37391. PoCs published by sirpedrotavares.

AI-analyzed exploit summary This is a writeup describing a stored XSS vulnerability in Chamilo LMS 1.11.x, where an unprivileged user can send a malicious invitation message to steal cookies or execute arbitrary code on the administrator's side.

Description

A user without privileges in Chamilo LMS 1.11.14 can send an invitation message to another user, e.g., the administrator, through main/social/search.php, main/inc/lib/social.lib.php and steal cookies or execute arbitrary code on the administration side via a stored XSS vulnerability via social network the send invitation feature.

Exploits (1)

exploitdb WRITEUP
by sirpedrotavares · textwebappsphp
https://www.exploit-db.com/exploits/50694

This is a writeup describing a stored XSS vulnerability in Chamilo LMS 1.11.x, where an unprivileged user can send a malicious invitation message to steal cookies or execute arbitrary code on the administrator's side.

Classification
Writeup 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Chamilo LMS 1.11.x
Auth required
Prerequisites: Access to a user account in Chamilo LMS · Victim interaction (admin must view the malicious message)
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2

Scores

CVSS v3 5.4
EPSS 0.0214
EPSS Percentile 79.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
chamilo/chamilo_lms 1.11.0 - 1.11.14
Published Aug 10, 2021
Tracked Since Feb 18, 2026